Opaque molecularly oriented and heat set linear polyester film a

Details Opaque molecularly oriented and heat set linear polyester film a Opaque molecularly oriented and heat set linear polyester film a

1973-10-19

1976-03-16

Anderson, Harold D.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

96 87R, 260 37R, 260873, 264 454, 282 28R, 264210R, 428483, C08G 3910, B32B 2708

Patent

active

039446999

ABSTRACT:
Opaque voided films having a total luminous transmission not exceeding 25% are made from blends of a polyester preferably polyethylene terephthalate, with 3 to 27% of an ethylene or propylene polymer, prepared by dry blending. One end use of the film, as a base for photographic prints is also described.

REFERENCES:
patent: 3322854 (1967-05-01), Yasui et al.
patent: 3405198 (1968-10-01), Rein et al.
patent: 3579609 (1971-05-01), Sevenich
patent: 3755499 (1973-08-01), Heijo

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